package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 新增员工
     * @param employeeDTO
     */
    @Override
    public void sava(EmployeeDTO employeeDTO) {
//        String sex = employeeDTO.getSex();
//        if (!((sex.contains("1"))||(sex.contains("0")))){
//
//        }

        //创建数据库Employee 对象，来接收DTO数据
        Employee employee = new Employee();
        //bean工具包 属性拷贝,第一个参数是拷贝参考对象，第二个参数是拷贝对象
        BeanUtils.copyProperties(employeeDTO,employee);

        //这时候employee 实体类已经有部分数据了，接下来对剩下的属性赋值

        //状态,数值参数都用类数值
        employee.setStatus(StatusConstant.ENABLE);
        //密码 初始值12345，并且加密
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        //创建时间
//        employee.setCreateTime(LocalDateTime.now());
        //修改时间
//        employee.setUpdateTime(LocalDateTime.now());

        //TODO ：后期需要改成当前登录用户id
        //创建用户
//        employee.setCreateUser(BaseContext.getCurrentId());
//        //修改用户
//        employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.insert(employee);


    }

    /**
     * 员工分页查询
     * @param employeePageQueryDTO
     * @return
     */
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        int page = employeePageQueryDTO.getPage();
        int pageSize = employeePageQueryDTO.getPageSize();

        PageHelper.startPage(page,pageSize);
        Page<Employee> employeePage=employeeMapper.pageQuery(employeePageQueryDTO);

        return new PageResult(employeePage.getTotal(),employeePage.getResult());
    }

    /**
     * 启用禁用
     * @param status
     * @param id
     */
    @Override
    public void startOrClose(Integer status, Long id) {
        Employee employee = new Employee();
        employee.setStatus(status);
        employee.setId(id);
//        Employee.EmployeeBuilder id1 = Employee.builder().status(status).id(id);
//        employeeMapper.startOrClose(status,id);
        employeeMapper.update(employee);
    }

    /**
     *
     * 根据id查询员工
     * @param id
     * @return
     */
    @Override
    public Employee selectById(Long id) {
        Employee employee=employeeMapper.selectByID(id);
        return employee;
    }

    /**
     * 修改员工信息
     * @param employeeDTO
     */
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.update(employee);

    }



}
